Страница 5, ГДЗ по математике за 3 класс к тренажёру Погореловой
Повторение. Сложение и вычитание чисел от 1 до 100
\[\begin{aligned} 40 - \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} &= 37 & \qquad 30 - \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} &= 28 & \qquad 54 + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} &= 60 \\ 56 + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} &= 60 & \qquad 47 + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} &= 50 & \qquad 60 - \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} &= 53 \\ 80 - \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} &= 71 & \qquad 70 - \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} &= 65 & \qquad 46 + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} &= 50 \\ 25 + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} &= 30 & \qquad 32 + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} &= 40 & \qquad 80 - \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} &= 73 \\ 60 - \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} &= 56 & \qquad 50 - \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} &= 44 & \qquad 35 + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} &= 40 \end{aligned}\]
\[\begin{aligned} (74 + 6) + 7 &= \textcolor{#e03131}{\mathbf{87}} & \qquad (46 + 4) + 2 &= \textcolor{#e03131}{\mathbf{52}} \\ (27 + 3) + 5 &= \textcolor{#e03131}{\mathbf{35}} & \qquad (61 + 9) + 6 &= \textcolor{#e03131}{\mathbf{76}} \\ (55 + 5) + 8 &= \textcolor{#e03131}{\mathbf{68}} & \qquad (83 + 7) + 9 &= \textcolor{#e03131}{\mathbf{99}} \\ (32 + 8) + 4 &= \textcolor{#e03131}{\mathbf{44}} & \qquad (38 + 2) + 3 &= \textcolor{#e03131}{\mathbf{43}} \end{aligned}\]
\[\begin{aligned} (37 - 7) - 9 &= \textcolor{#e03131}{\mathbf{21}} & \qquad (96 - 6) - 3 &= \textcolor{#e03131}{\mathbf{87}} \\ (84 - 4) - 2 &= \textcolor{#e03131}{\mathbf{78}} & \qquad (63 - 3) - 8 &= \textcolor{#e03131}{\mathbf{52}} \\ (55 - 5) - 7 &= \textcolor{#e03131}{\mathbf{43}} & \qquad (49 - 9) - 5 &= \textcolor{#e03131}{\mathbf{35}} \\ (28 - 8) - 4 &= \textcolor{#e03131}{\mathbf{16}} & \qquad (71 - 1) - 6 &= \textcolor{#e03131}{\mathbf{64}} \\ (62 - 2) - 1 &= \textcolor{#e03131}{\mathbf{59}} & \qquad (54 - 4) - 2 &= \textcolor{#e03131}{\mathbf{48}} \end{aligned}\]
